In order to make it easier to follow LSP, it's wise to minimize the amount of concrete implementation in your base types. The more you can minimize it, the less likely you are to encounter a situation where a base type implements behavior you don't want. That in turn reduces the spots where you might even want to violate LSP.
The logical end to this is purely abstract base classes which contain no implementation. These types are so easy to reuse that some languages have even enshrined them as their own special language construct (typically called "interfaces"), and given them special privileges that types which allow implementation don't get to enjoy, such as multiple inheritance. The reason they get these special privileges is that it's relatively easy for them to enjoy those features without violating LSP, whereas it's inherently tricky for types that include concrete implementation to do the same.